Started working on a simple UDP wrapper

docs/networking outline.txt

@@ -17,12 +17,32 @@ using ';' delimited commands, how can I get it to work?
 
 -------------------------
 
-UDPNetworkManager: //don't worry at this stage
-	Open(port)
-	Close()
+UDPNetworkUtility:
+	void Open(port, packSize)
+	void Close()
 
-	Send(ip, port)
-	Receive()
+	//bind to an available channel
+	int Bind(ip, port)
+	int Bind(address)
+
+	//bind to a certain channel
+	int Bind(ip, port, channel)
+	int Bind(address, channel)
+	void Unbind(channel)
+
+	int Send(channel, data, len)
+	int Receive()
+
+	GetIPAddress(channel)
 
 	GetOutData()
-	GetInData()
+	GetInData()
+
+	GetOutPacket()
+	GetInPacket()
+
+	UDPsocket socket
+	UDPpacket packOut
+	UDPpacket packIn
+end
+

libs/SDL_net/SDL_net.h

@@ -24,10 +24,10 @@
 #ifndef _SDL_NET_H
 #define _SDL_NET_H
 
-#include "SDL.h"
-#include "SDL_endian.h"
-#include "SDL_version.h"
-#include "begin_code.h"
+#include "SDL/SDL.h"
+#include "SDL/SDL_endian.h"
+#include "SDL/SDL_version.h"
+#include "SDL/begin_code.h"
 
 
 
@@ -157,9 +157,9 @@ extern DECLSPEC void SDLCALL SDLNet_TCP_Close(TCPsocket sock);
 /***********************************************************************/
 
 /* The maximum channels on a a UDP socket */
-#define SDLNET_MAX_UDPCHANNELS	32
+#define SDLNET_MAX_UDPCHANNELS	150
 /* The maximum addresses bound to a single UDP socket channel */
-#define SDLNET_MAX_UDPADDRESSES	4
+#define SDLNET_MAX_UDPADDRESSES	1
 
 typedef struct _UDPsocket *UDPsocket;
 typedef struct {
@@ -447,6 +447,6 @@ do					\
 #ifdef __cplusplus
 }
 #endif
-#include "close_code.h"
+#include "SDL/close_code.h"
 
 #endif /* _SDL_NET_H */

libs/SDL_net/SDLnet.c

@@ -23,7 +23,7 @@
 
 #include <string.h>
 
-#include "SDL_endian.h"
+#include "SDL/SDL_endian.h"
 
 #include "SDLnetsys.h"
 #include "SDL_net.h"

libs/SDL_net/makefile

@@ -0,0 +1,12 @@
+SRC=$(wildcard *.c)
+OBJ=$(SRC:.c=.o)
+OUT = libSDL_net.a
+
+all: $(OBJ)
+	ar -crs $(OUT) $(OBJ)
+
+$(%.o): %.c
+	$(CC) -c -o $@ $<
+
+clean:
+	$(RM) *.o *.a

server/udp_network_utility.hpp

@@ -0,0 +1,52 @@
+#ifndef UDPNETWORKUTILITY_HPP_
+#define UDPNETWORKUTILITY_HPP_
+
+#include "SDL_net/SDL_net.h"
+
+class UDPNetworkUtility {
+public:
+	UDPNetworkUtility() = default;
+	~UDPNetworkUtility() = default;
+
+	void Open(int port, int packSize);
+	void Close();
+
+	//bind to an available channel
+	int Bind(const char* ip, int port) {
+		Bind(ip, port, -1);
+	}
+	int Bind(IPaddress add) {
+		Bind(add, -1);
+	}
+
+	//bind to certain channel
+	int Bind(const char* ip, int port, int channel);
+	int Bind(IPaddress add, int channel);
+	void Unbind(int channel);
+
+	IPaddress* GetIPAddress(int channel) {
+		return SDLNet_GetPeerAddress(socket, channel);
+	}
+
+	int Send(int channel, void* data, int len);
+	int Receive();
+
+	void* GetOutData() const {
+		return reinterpret_cast<void*>(packOut->data);
+	};
+	void* GetInData() const {
+		return reinterpret_cast<void*>(packIn->data);
+	};
+	void* GetOutPacket() const {
+		return packOut;
+	}
+	void* GetInPacket() const {
+		return packIn;
+	}
+private:
+	UDPsocket socket = nullptr;
+	UDPpacket* packOut = nullptr;
+	UDPpacket* packIn = nullptr;
+};
+
+#endif